package servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import DB.GroupAndUsersTableDB;

import com.google.gson.JsonObject;

public class InviteConfirmation extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public InviteConfirmation() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		String email = request.getParameter("email");
		String groupID = request.getParameter("groupID");
		JsonObject  object = new JsonObject ();
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		if(email == null || email.equals("")){
			out.println("Confirmation failure, email cannot be empty");
		}else if(groupID == null || groupID.equals("")){
			out.println("Confirmation failue, groupID cannot be empty");
		}else{
			GroupAndUsersTableDB groupAndUsersTableDB = new GroupAndUsersTableDB();
			groupAndUsersTableDB.createGroupAndUsers(email, groupID);
			out.println("Congratulations, you have joined the chatRoom! Please refresh the group list");
		}
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
